Magnesium Sulfate Heptahydrate (Epsom Salt) from Mexico
Magnesium sulfate heptahydrate, commonly known as Epsom salt, is a chemically defined inorganic salt of magnesium with the formula MgSO4·7H2O. It falls under HTS 2833.21.00.00 as a sulfate of magnesium, used in bath salts, gardening, and as a laxative. This crystalline compound is hydrated and meets Chapter 28 definitions for classification here.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify purity and hydration state via lab analysis to confirm 'chemically defined' status; provide Certificate of Analysis (CoA) for customs; watch for fertilizer blends that shift to Chapter 31